Global Patent Index - EP 3830158 A1

EP 3830158 A1 20210609 - METHODS FOR REDUCING ALDEHYDE EMISSIONS IN POLYURETHANE FOAMS

Title (en)

METHODS FOR REDUCING ALDEHYDE EMISSIONS IN POLYURETHANE FOAMS

Title (de)

VERFAHREN ZUR VERMINDERUNG VON ALDEHYDEMISSIONEN IN POLYURETHANSCHAUMSTOFFEN

Title (fr)

PROCÉDÉS DE RÉDUCTION DES ÉMISSIONS D'ALDÉHYDE DANS DES MOUSSES DE POLYURÉTHANE

Publication

EP 3830158 A1 20210609 (EN)

Application

EP 18928800 A 20180802

Priority

CN 2018098386 W 20180802

Abstract (en)

[origin: WO2020024236A1] Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, at least one cyclic 1, 3-diketone compound, at least one aminoalcohol or alkylhydroxylamine and an alkali metal, phosphonium or ammonium sulfite. Foams so produced emit low levels of formaldehyde, acetaldehyde, acrolein and propionaldehyde.

IPC 8 full level

C08G 18/28 (2006.01); C08G 18/32 (2006.01); C08G 18/79 (2006.01); C08J 9/00 (2006.01)

CPC (source: EP KR US)

C08G 18/08 (2013.01 - KR); C08G 18/0852 (2013.01 - US); C08G 18/14 (2013.01 - KR); C08G 18/2063 (2013.01 - EP); C08G 18/225 (2013.01 - US); C08G 18/281 (2013.01 - EP); C08G 18/3206 (2013.01 - EP); C08G 18/3275 (2013.01 - EP); C08G 18/3278 (2013.01 - EP); C08G 18/3281 (2013.01 - US); C08G 18/4072 (2013.01 - EP); C08G 18/4829 (2013.01 - US); C08G 18/4841 (2013.01 - EP); C08G 18/632 (2013.01 - EP); C08G 18/6688 (2013.01 - EP US); C08G 18/76 (2013.01 - KR); C08G 18/7607 (2013.01 - EP US); C08G 18/7614 (2013.01 - US); C08G 18/7621 (2013.01 - EP); C08G 18/7671 (2013.01 - EP US); C08J 9/0023 (2013.01 - US); C08J 9/125 (2013.01 - US); C08K 3/30 (2013.01 - EP); C08K 5/005 (2013.01 - KR); C08K 5/07 (2013.01 - EP KR); C08K 5/13 (2013.01 - KR US); C08K 5/17 (2013.01 - EP KR); C08G 2101/00 (2013.01 - KR); C08G 2110/0008 (2021.01 - EP); C08G 2110/0083 (2021.01 - EP US); C08G 2290/00 (2013.01 - EP); C08J 2203/10 (2013.01 - US)

C-Set (source: EP)

  1. C08K 5/07 + C08L 75/04
  2. C08K 5/17 + C08L 75/04
  3. C08K 3/30 + C08L 75/04

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2020024236 A1 20200206; CN 112585184 A 20210330; CN 112585184 B 20230411; EP 3830158 A1 20210609; EP 3830158 A4 20220323; JP 2022512532 A 20220207; JP 7253037 B2 20230405; KR 102649156 B1 20240320; KR 20210040094 A 20210412; US 11479650 B2 20221025; US 2021292508 A1 20210923

DOCDB simple family (application)

CN 2018098386 W 20180802; CN 201880096688 A 20180802; EP 18928800 A 20180802; JP 2021505858 A 20180802; KR 20217005673 A 20180802; US 201817262828 A 20180802